pub fn dp_rec_mc(amount: u32) -> u32 {
    // TODO: 这里写逻辑
    // todo!()
    let denominations = [100, 50, 30, 20, 10, 5, 2, 1];
    let mut count = 0;
    let mut remaining_amount = amount;

    for &denomination in &denominations {
        while remaining_amount >= denomination {
            remaining_amount -= denomination;
            count += 1;
        }
        if remaining_amount == 0 {
            break;
        }
    }

    count
}
